[FLASH-USERS] Fwd: How can I add density property to the particle

[Tristan]

Oh,I forgot this useful PARAMETER
It solved my question, @Klaus Weide , Thanks you
Best wishes!

> Begin forwarded message:
> 
> From: Klaus Weide <klaus at flash.uchicago.edu>
> Subject: Re: [FLASH-USERS] How can I add density property to the particle
> Date: May 27, 2021 at 11:56:38 PM GMT+8
> To: flash-users at flash.uchicago.edu
> 
> On Thu, 27 May 2021, Tristan wrote:
> 
>> I am doing a simulation about the characteristic of the high mach 
>> turbulence. I want to add some passive Lagrangian particles into the 
>> simulation. But the default properties of particles include velocity and 
>> position, not the density. I want to know the density of the trajectory 
>> the particles draw. Maybe use the Runge-Kutta method.
>> 
>> I have reading the guide and add the two line to the ParticlesMain unit Config :
>> 
>> ```
>> PARTICLEPROP dens REAL
>> PARTICLEMAP TO dens FROM VARIABLE dens
>> ```
> 
> You need something like this in addition:
> 
>  D particle_attribute_1 specification of which particle_attributes 
>  D & to output. The same description is valid for particles_attributes_2...etc
>  PARAMETER particle_attribute_1 STRING "dens"
>  PARAMETER particle_attribute_2 STRING "temp"
>  ...
> 
> 
> Klaus
> 

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